Abstract
Several stroke scales, such as the National Institutes of Health Stroke Scale (NIHSS), The Scandinavian Stroke Scale (SSS), The European Stroke Scale (ESS), have been used in clinical measurements of the severity in patients with acute stroke. But all these scales are ordinal scales, so level of data of them in not high than that of ratio scale.
Recently, Japan Stroke Scale (JSS) is established, which is a ratio scale and a quantitative measure of the severity in acute stroke by use of conjoint analysis, with 10-item neurologic examinations. The examinations can be performed easily, and JSS has proven inter-rater reliability and has predictive validity for stroke outcome.
For estimating usefulness and problem of JSS for clinical use in acute stroke, we investigated total score and each scale item in 50 patients with acute stroke. Several notice were recognized in some cases, for the specific items of the scale : level of consciousness, sensory system and motor system.
